Rock d'Funk: here are the settings I used for the brushed aluminum texture. No bump map or other textures, just high Angle and Samples numbers.

I'm trying to reduce rendering times, and blurred refractions are killer. Any tips for a close-enough-looking aluminum texture without the big rendering times? I have a 30sec animation at 1366x768 and I'm trying to make render time in days rather than weeks!